Arcotherm JUMBO 65 M Manual Para El Usuario Y El Mantenimiento página 17

Number of phases
Voltage [V]
Frequency [Hz]
❏ 230V - 3~ - 50Hz
❏ 400V - 3~ - 50Hz
CONNECTION TO HOT AIR DUCTS
The space heater provides heat by releasing and dispersing hot air.
An air head is supplied with each unit but it can be replaced by other
types of head with two or four openings which allow for flexible tubes
in heat distribution. The screws which hold the original outlet in place
should be removed and the new outlet should be screwed on in place
of the old.
The air head can also be replaced by one of the "plenum" type. In
this case the front panel is removed and replaced by the "plenum".
The new head with the exception of the "plenum", may be connec-
ted to new air ducts if the user wishes to satisfy specific needs. In this
case and in particular if the diameter and length of the ducts have been
changed or if the number of bends has been modified, air output may
vary. Consequently it is very important to check and regulate air output
when any modification is made to air heads or air ducts. In all circum-
stances you must ensure that:
• The fan motor does not absorb more current than the maximum
permitted limit;
• The volume of air flow corresponds to the recommended level.
If the heater is equipped with centrifugal fan and if the volume of
hot air differs from preset values proceed as follows (Fig. 2):
1) Remove the aspiration grill which is on fan motor side of the
unit.
2) Remove the screws (2) from the motor slide.
3) Remove the belt (1).
4) Loosen the bolts (3).
5) Turn the pulley clockwise and anti-clockwise in order to increa-
se or reduce the volume of air.
6) Tighten the bolts (3).
7) Put back the aspirations grill
8) Repeat operations 1-7 until the correct volume of air flow has
been achieved.
Model Model
M - M/C T - T/C
1 3
230 230/400
50 50
Table 1
Table 2
DRAFT
Efficient combustion and trouble-free working of the burner de-
pend on efficient flue draft. The unit must be connected to the chimney
flue in accordance with current legal regulations and in line with the
following guidelines:
• The tube which carries the smoke should cover as short a distan-
ce as possible and should slant upwards.
• There should be no sharp bends in the tubes and the diameter of
the tubes must never be reduced.
• Every heater must have its own chimney.
• Flue draft must at least correspond to the minimum compulsory
level in the Technical Specifications.
ANALYSIS OF COMBUSTION WASTE PRODUCTS
The probes which check the composition of combustion waste
products and smoke temperature must be positioned as indicated in
Fig. 3.
When these tests have been completed the hole which was drilled
for the probe must be sealed with a material which is resistant to high
temperatures and which ensures that the tube remains airtight.
CONNECTION TO FUEL SUPPLY AND CHANGING FROM ONE TYPE OF
GAS TO ANOTHER
To connect the burner to the fuel supply follow the instructions in
the Burner Instruction Manual.
The burner can use both methane gas and LPG. The gas used to
predispose the heater at factory has been declared on data plates ap-
plied on the box and on the heater itself (methane, G 20, or LPG, G 30,
G 31).
To change from methane gas to LPG or vice-versa you must:
• Adjustments to be carried out are described in the burner in-
structions manual.
• repeat regulation of combustion while composition of combu-
stion waste products are checked.
• correct data plate on the heater writing which type of gas must
be used.
REGULATION OF COMBUSTION - I° OPERATION
After having checked the hermetic seal and of combustion waste
products line, heater may be operated for the first time.
To perform regulation of combustion correctly, combustion waste
products must be analyzed using appropriate instruments: values re-
commended by actual standards must be reached.
The regulation procedure has been on the Burner Instruction Ma-
nual; final values of CO2 shall be correspondant to excess air factor of
1,2 (12,5 for gas-oil, 9,7% for G 20, 9,6% for G 25, 11,7% for G 30
and 11,7% for G 31) while CO level shall be less than 75 ppm.
17
ENGLISH
Fig. 2
200 mm
Fig. 3